"All seeing needle" for the treatment of lower renal calyx stone of less than 2 cm in diameter in percutaneous nephrolithotripsy

doi:10.3877/cma.j.issn.1674-3253.2021.04.004

Abstract

Abstract:

Objective

To compare the safety and efficacy of "all seeing needle" in percutaneous nephrolithotripsy (Microperc) and microchannel percutaneous nephrolithotripsy (mPCNL) for the treatment of lower renal calyx stone with maximum diameter less than 2 cm.

Methods

Clinical data of 60 patients with lower renal calyx stone treated in our hospital from March 2019 to December 2019 were analyzed. The maximum diameter of stones was ≤2 cm. Percutaneous nephrolithotomy was performed directly after puncture in 30 cases (Microperc group), and after successful puncture, they were expanded to microchannel (16 F) and percutaneous nephrolithotripsy in other 30 cases (mPCNL group). There was no statistical difference in clinical data before operation between the two groups. The operation-related indexes, clearing rate and complications of the two groups were compared.

Result

The operation time in the Microperc group (51.3±8.5) min was longer than that in the mPCNL group (37.8±6.1) min, the postoperative hospital stay (3.2±0.4) d was shorter than that in the mPCNL group (5.4±0.6) d, and the pain VAS score (3.12±0.93) was lower than mPCNL group (5.08±1.21), the differences were significant (P<0.05). There was no significant difference in the incidence of complications such as maximum renal pelvis pressure, decreased hemoglobin, postoperative infection fever, hemorrhage, and perirenal hematoma between the two groups (P>0.05). CT was reviewed in 1 month and 3 months after surgery, the stone removal rate (80%) in the Microperc group was lower than that in the mPCNL group (100%) at 1 month after surgery, and the difference was significant. There was no difference in the stone removal rate between the two groups at 3 months after surgery.

Conclusion

"All seeing needle" in percutaneous nephrolithotripsy is safe and effective for treatment of <2 cm inferior calyx stones, with high clearing rate and low complication rate. It can be used as one of the effective surgical options for lower renal calyx stone.

Key words: Lower renal calyx stone, All seeing needle, Percutaneous nephrolithotripsy

Jie Xie, Qiangdong Wang, Zhenjia Dong, Xu Xiao, Yin Yang. "All seeing needle" for the treatment of lower renal calyx stone of less than 2 cm in diameter in percutaneous nephrolithotripsy[J]. Chinese Journal of Endourology(Electronic Edition), 2021, 15(04): 285-288.

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References 15

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组别	例数	性别(例)		年龄[岁，(±s)]	结石最大径[cm，(±s)]	合并尿路感染(例)
组别	例数	男	女	年龄[岁，(±s)]	结石最大径[cm，(±s)]	合并尿路感染(例)
Microperc组	30	20	10	39.3±9.7	1.48±0.21	3
mPCNL组	30	17	13	41.2±10.3	1.57±0.19	5
统计值		χ²=0.6345		t=1.3845	t=1.7407	χ²=0.1442
P值		>0.05		>0.05	>0.05	>0.05

组别	例数	性别(例)		年龄[岁，(±s)]	结石最大径[cm，(±s)]	合并尿路感染(例)
组别	例数	男	女	年龄[岁，(±s)]	结石最大径[cm，(±s)]	合并尿路感染(例)
Microperc组	30	20	10	39.3±9.7	1.48±0.21	3
mPCNL组	30	17	13	41.2±10.3	1.57±0.19	5
统计值		χ²=0.6345		t=1.3845	t=1.7407	χ²=0.1442
P值		>0.05		>0.05	>0.05	>0.05

组别	例数	手术时间[min，(±s)]	术中最高肾盂压[cmH₂O，(±s)]	术后住院天数[d，(±s)]	疼痛视觉评分[分，(±s)]	血红蛋白下降量[g/L，(±s)]	并发症(例)	术后1个月清石率(%)	术后3个月清石率(%)
Microperc组	30	51±8	22±6	3.2±0.4	3.1±0.9	6.6±2.1	3	80.0	93.3
mPCNL组	30	38±6	24±6	5.4±0.6	5.1±1.2	8.0±3.5	4	100	100
统计值		t =7.067	t =1.822	t =16.710	t =7.034	t =1.945	0.000	χ²=4.629	χ²=0.517
P值		<0.05	>0.05	<0.05	<0.05	>0.05	>0.05	<0.05	0.05

组别	例数	手术时间[min，(±s)]	术中最高肾盂压[cmH₂O，(±s)]	术后住院天数[d，(±s)]	疼痛视觉评分[分，(±s)]	血红蛋白下降量[g/L，(±s)]	并发症(例)	术后1个月清石率(%)	术后3个月清石率(%)
Microperc组	30	51±8	22±6	3.2±0.4	3.1±0.9	6.6±2.1	3	80.0	93.3
mPCNL组	30	38±6	24±6	5.4±0.6	5.1±1.2	8.0±3.5	4	100	100
统计值		t =7.067	t =1.822	t =16.710	t =7.034	t =1.945	0.000	χ²=4.629	χ²=0.517
P值		<0.05	>0.05	<0.05	<0.05	>0.05	>0.05	<0.05	0.05

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